7203221064 has 48 divisors (see below), whose sum is σ = 21009397500. Its totient is φ = 2216375424.

The previous prime is 7203221063. The next prime is 7203221071. The reversal of 7203221064 is 4601223027.

It can be written as a sum of positive squares in 2 ways, for example, as 7200880164 + 2340900 = 84858^2 + 1530^2 .

It is not an unprimeable number, because it can be changed into a prime (7203221063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3846939 + ... + 3848810.

Almost surely, 2^7203221064 is an apocalyptic number.

It is an amenable number.

7203221064 is an abundant number, since it is smaller than the sum of its proper divisors (13806176436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7203221064 is a wasteful number, since it uses less digits than its factorization.

7203221064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7695774 (or 7695767 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 7203221064 is about 84871.7919216980. The cubic root of 7203221064 is about 1931.2666802719.

It can be divided in two parts, 72032 and 21064, that added together give a triangular number (93096 = T₄₃₁).

The spelling of 7203221064 in words is "seven billion, two hundred three million, two hundred twenty-one thousand, sixty-four".